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|Viewing Issue Advanced Details|
|ID||Category||Severity||Reproducibility||Date Submitted||Last Update|
|0000046||[MyDNS-NG] Global||tweak||always||2010-02-16 11:37||2010-02-19 16:36|
|ETA||none||Fixed in Version||Product Version||220.127.116.11|
|Target Version||Product Build|
|Summary||0000046: Segmentation fault on startup|
Backed up database from mydns to mydns.bac in /var/lib/mysql.
Stop mydns, restart it.
Mydns reports the error that mydns.old is not a valid database name even though it is not referenced anywhere in the mydns.conf. Mydns then seg faults.
Logging into mysql does not show any errors.
Somewhere along the line error messages from mysql about having an invalid database name are leaking into Mydns even if the databases are not in use within mydns.
|Steps To Reproduce|
|Tags||No tags attached.|
You 1st said you backup'd up the DB to mydns.bac
Then after you wrote mydns.old.
Can you clarify this part?
I understood sorry,
This doesn't happen, which version are you using?
edited on: 2010-02-19 15:41
This is from mydns trying to get the maximum string length from various database fields, where it queries INFORMATION_SCHEMA.
But indeed, mydns.bac is, by definition, not a valid mysql database name (dots are not allowed in database names).
Will look at it as soon as time permits.
MySQL does not even allow to create "mydns.bac".
So a manual "cp mydns mydns.bac" on the MySQL datadir should not happen anyway, if a backup is done with this name it should be kept outside the datadir.
|Won't fix, due to mysql limitations (see notes for full explanation)|
From a user perspective, if I copy a database to a directory called mydns.bac while it's not a valid database name then if I break mysql, that's my fault but I'd expect mysql to tell me about the invalid database name.
If Mysql carries on running but somehow mydns breaks, that doesn't seem right.
Is mydns looking beyond the database referenced in the .conf file or is it not handling an error from mysql correctly?
Either way I think mydns should in part protect the user from what is seemingly an easy mistake to make.
|Ok, I'll dig into it. If the fix is trivial, it will make it into 18.104.22.168, which I plan to tie together next week|
|2010-02-16 11:37||netserve||New Issue|
|2010-02-16 13:19||jasb||Note Added: 0000138|
|2010-02-16 13:21||jasb||Note Added: 0000139|
|2010-02-19 15:40||tlamy||Note Added: 0000140|
|2010-02-19 15:41||tlamy||Note Edited: 0000140|
|2010-02-19 15:50||jorge||Note Added: 0000141|
|2010-02-19 15:53||tlamy||Note Added: 0000142|
|2010-02-19 15:53||tlamy||Status||new => closed|
|2010-02-19 15:53||tlamy||Resolution||open => won't fix|
|2010-02-19 16:03||netserve||Note Added: 0000143|
|2010-02-19 16:03||netserve||Status||closed => feedback|
|2010-02-19 16:03||netserve||Resolution||won't fix => reopened|
|2010-02-19 16:35||tlamy||Assigned To||=> tlamy|
|2010-02-19 16:35||tlamy||Priority||normal => low|
|2010-02-19 16:35||tlamy||Status||feedback => assigned|
|2010-02-19 16:35||tlamy||Description Updated|
|2010-02-19 16:36||tlamy||Note Added: 0000144|
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